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Bank watchdogs say extreme weather conditions could lead to a 5% decline in the euro zone's GDP.

Heatwaves, wildfires and flooding could have the same impact on the euro zone's GDP as the global financial crises or COVID-19, according to a senior official at the European Central Bank.

According to Livio Stracca, deputy director at the ECB, a series of severe weather events could lead to a near-term decline in the euro zone's growth of almost 5%. This is based on ECB's most extreme climate scenario, which was developed by ECB and 145 bank supervisors this year.

The peak negative impact on the euro area's GDP is about 5%. This is the same magnitude as the global financial crises and just a bit less than COVID-19, said Stracca. He also chairs the Network for Greening the Financial System workstream on scenario analysis and design.

The findings are based upon a set of new tools developed by the NGFS. This group of central banks and supervisors is working to address climate risk in the financial and economic sectors.

These tools are designed to help companies and banks understand the impact of climate change on their business in the short-term by testing a number of climate-related scenarios.

The group concluded that the euro zone's growth would be most adversely affected by "Disasters and Policy Stagnation", whereby heatwaves and droughts in 2026 are followed by a combination or floods and storms a year later in 2027.

Another scenario suggests that if the euro zone follows through on its net-zero policies, which include its plan to reduce greenhouse gas emissions by 55% by 2030, this could help mitigate losses.

In a blog posted by the ECB, Stracca and Bundesbank member Sabine Mauderer stated that climate-related risks were an immediate concern to financial stability and economic development.

The NGFS scenarios... show that a global coordinated net-zero initiative would safeguard the economic interests of the euro zone over the next five year."

The NGFS already has a set of widely-used climate scenarios. But this is the very first time that they offer tools to assess short-term impacts and physical effects. Reporting by Virginia Furness Editing Mark Potter

(source: Reuters)